A cylinder of gas is assumed to contain 11.2 kg of butane.If a normal family needs 20,000kJ of energy per day.The cylinder will last for how many days?(enthalpy for the combustion of butane is -2658kJ) 20 days 35 days 26 days 31 days
Aishwarya Byreddy , 8 Years ago
Grade 12th pass
1 Answers
Jayanth Kasaraneni
Last Activity: 8 Years ago
for 58 g of butane=2658KJ
for 11200 g of butane =2658x193.10344826=513268.96550
no. of days that on cylinder lasts is 513268.96550/20000=26 days(approx.)